Is it true

[Jeremiah Dyke]

Is it true that Marx concluded that labor was the only factor capable of producing value i.e. not land or tools?

[Qayin]

http://kapitalism101.wordpress.com/
Great for noobs.

Im sure that Marx concluded labor is the most important commodity since it produces tools

I'm not sure what you exactly mean by land since private property under capitalism holds the means of production of the Bourgeois

[mikelepore]

It's true. Most people who think it's unreasonable have usually missed the point of what value means, which is the ratios in which commodities would typically be exchanged for other commodities, such as 1 barrel of oil = 12 kilograms of scrap iron = 40 bushels of wheat, etc. These ratios depend directly on the labor incurred per unit of each commodity. Very often people who thought that the value of something means "how strongly I want it" get off to a bad start, misunderstanding what the discussion is about.

[ZombieGrits]

Not necessarily. A commodity has its two values, use value and exchange value. Those values might be inherent in the object, or they may be the product of labor (ex: a blacksmith has to turn raw iron into a tool to maximize its use value). However, the way to turn a profit selling commodities is to exploit workers by paying the worker less than the value of what he/she produces. Land and tools play a part in producing an objects value, but it is chiefly by exploiting labour that the capitalist makes his profits

[el_chavista]

Is it true that Marx concluded that labor was the only factor capable of producing value i.e. not land or tools? He took it from English classic economists like David Ricardo.